Meteoritical Bulletin: Entry for Northwest Africa 14184

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Northwest Africa 14184

Basic information

Name: Northwest Africa 14184
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14184
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 728 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	L6
Recommended:			L6 [explanation]

This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 4 Sep 2021

Writeup

help

Writeup from MB 110:

Northwest Africa 14184 (NWA 14184)

(Northwest Africa)

Purchased: 2020 Jul

Classification: Ordinary chondrite (L6)

History: Purchased by Ziyao Wang in July 2020 from a dealer in Guelmim, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Shock-darkened, extensively recrystallized assemblage consisting predominantly of aggregates of very fine grained silicates with rare remnant chondrules and patches of opaque phases. Accessory phases include sodic plagioclase, troilite, altered kamacite, low-Ti chromite and minor iron phosphide. No phosphates were found.

Geochemistry: Olivine (Fa_24.7±0.5, range Fa_24.2-25.3, N = 5), low-Ca pyroxene (Fs_19.3±0.4Wo_2.9±0.5, range Fs_19.0-20.0Wo_2.2-3.4, N = 5), pigeonite (Fs_8.3±1.3Wo_20.0±0.0, range Fs_7.3-9.2Wo₂₀, N = 2), subcalcic augite (Fs_15.3±0.1Wo_29.1±0.4, range Fs_15.2-15.4Wo_28.8-29.3, N = 2), augite (Fs_13.9Wo_36.9).

Classification: Ordinary chondrite (L6).

Specimens: 21.8 g including one polished thin section at UWB; remainder with WangZ.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Guelmim
Date:	P 2020 Jul
Mass (g):	728
Pieces:	1
Class:	L6
Shock stage:	S5
Weathering grade:	W1
Fayalite (mol%):	24.7±0.5
Ferrosilite (mol%):	19.3±0.4
Wollastonite (mol%):	2.9±0.5
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	21.8
Type spec location:	UWB
Main mass:	WangZ
Comments:	Work name WZY-28; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

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